Police have arrested four people in connection with an incident in Sedgley Close, Southsea where a man was stabbed.
A 34-year-old woman, two 18-year-old men and a 17-year-old boy, all from Southsea, have been arrested and are currently in police custody.
The arrests come after a 28-year-old man from Portsmouth was assaulted at about 8.30pm on Thursday, October 27.
The man was taken to hospital for treatment but has since been discharged.
Witnesses said a child, who was wearing a clown mask, and her family had returned from a community centre Halloween party.
A resident of Edgbaston House, in Sedgley Close, said she heard a woman screaming the little girl’s name after the man allegedly lashed out at the youngster.
Senior Investigating Officer Detective Inspector Linda Howard said: “It has been reported in the media that this incident was sparked by an earlier altercation involving a child wearing a clown mask.
“This is one of the lines of enquiry being followed. But at this time we would ask people not to speculate further and instead contact the investigation team if you have any information about what happened.”
Anyone with any information is asked to contact the Eastern Investigations Team on 101 quoting 44160406459 or call the charity Crimestoppers line on 0800 555 111, where information can be left anonymously.